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Brrunno [24]
2 years ago
13

Draw a line representing the "rise" and a line representing the "run " of the line. State the slope of the line in simplest form

.

Mathematics
1 answer:
elena-14-01-66 [18.8K]2 years ago
7 0

Answer:

9/13

Step-by-step explanation:

Step-by-step explanation: rise = y₂ - y₁ = -1 - (-10) = -1 + 10 =   9 run = x₂ - x₁ =   9 - (-4)   =   9 +   4 = 13

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A dinner costs $48 and they leave a 20% tip, how much $ will they leave at the restaurant with the tip. Does this make sense?
Alborosie
$9.60, 20% is $4.80*2
8 0
3 years ago
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This is a cross section of the design of a bookshelf.
Elanso [62]

Answer:

25 in

Step-by-step explanation:

a^{2} +b^{2} =c^{2} \\15^{2} +20^{2} =c^{2} \\225+400=c^{2} \\c^{2} =625\\c=\sqrt{625} \\c=25

6 0
3 years ago
Find the solution to the following: *
Trava [24]

Answer:

First one: x = all real numbers

Second one: x = 0

Step-by-step explanation:

for the first one

given 8x+10=2(4x+5) we need to isolate the variable (x) using inverse operations

step 1 distribute the 2 to what is in the parenthesis ( 4x and 5 )

2 * 4x = 8x

5 * 2 = 10

now we have 8x + 10 = 8x + 10

step 2 subtract 8x from each side

8x - 8x = 0

8x - 8x = 0

now we have 10 = 10

subtract 10 from each side

10 - 10 = 0

10 - 10 = 0

we're left with 0 = 0 meaning that all real numbers are solutions

For the second one

given 3x-8=2(x-4) once again we need to isolate the variable using inverse operations

step 1 distribute the 2 to what is in the parenthesis (x - 4)

2 *x = 2x

2 * -4 = -8

now we have 3x - 8 = 2x - 8

step 2 add 8 to each side

-8 + 8 = 0

-8 + 8 = 0

now we have 2x = 3x

step 3 subtract 2x from each side

3x - 2x = x

2x - 2x = 0

we're left with x = 0

5 0
3 years ago
Solve 3x+2y=7 and x-4y=-21 by using any method
kupik [55]

Answer:

(- 1, 5 )

Step-by-step explanation:

Using the method of substitution.

Given the 2 equations

3x + 2y = 7 → (1)

x - 4y = - 21 → (2)

Rearrange (2) expressing x in terms of y by adding 4y to both sides.

x = 4y - 21 → (3)

Substitute x = 4y - 21 into (1)

3(4y - 21) + 2y = 7 ← distribute and simplify left side

12y - 63 + 2y = 7

14y - 63 = 7 ( add 63 to both sides )

14y = 70 ( divide both sides by 14 )

y = 5

Substitute y = 5 into (3)

x = (4 × 5) - 21 = 20 - 21 = - 1

Solution is (- 1, 5 )

8 0
3 years ago
Michelle is at the bakery buying donuts. She can buy 3 donuts for $2.25, 5 donuts for $3.25, or a dozen donuts for $7.68. Which
horsena [70]

Answer:

the dozen for 7.68 because it is 12 instead of 5 for 4.42 more and ur geting 7 more donuts

5 0
3 years ago
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